The 44-year-old actress is keen to tie the knot with her fiancé Justin Theroux in a low-key ceremony at their mansion in Bel Air, California, and is planning to give her biker sibling Alex one of the lead roles on her big day.
Alex - who is also known as AJ - often drifts between Los Angeles and Alaska in his van and has "Live Free" tattooed across his chest in addition to a number of other inkings plastered across his body.
A family insider told the National ENQUIRER magazine: "AJ is exactly the kind of person that security would throw out of Jen's wedding. Instead he'll be front and centre at the ceremony.
"Justin feels that having AJ act as his best man at the wedding will give him an anchor in the family. There's no doubt that AJ is quirky, but he's got a good heart and Jen does love him."
The blonde beauty previously married to Hollywood hunk Brad Pitt - who is now engaged to Angelina Jolie - in a lavish ceremony in Malibu in July 2000, but is keen to venture in a different direction this time around.
The insider explained: "Jen hated her wedding to Brad Pitt. It was too big and incredibly stressful.
"This time she wants a small family affair and she wants to go the extra mile to let her father see that she is still happy at last. And she knows that including his son would make him happiest."
See photos of Alex here.
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